Earth working implement



Npv. 6, 1934. M. M. BRODERSEN 19,360

EARTH WORKING IMPLEMENT Original Filed June 20. 1932 3 Sheets-Sheet l In ventor [YCIZ MBrodemen I Nov. 6, 1934. BRODERSEN Re. 19,360

EARTH WORKING IMPLEMENT Original Filed June 20. 1932 3 Sheets-Sheet 2Inventor [Vax MBrodemea Attorney Nov. 6, 1934. M. M. BRODERSEN 19360EARTH WORKING IMPLEMENT Original Filed June 20, 1932 I5 Sheets-Sheet 5 Im c nlbr 'A Home) Max Mbrode'nsen Reissuecl Nov. 6 1934 fimglereem A h ma Galif ss no to em A- Leehren e en e Cahf M n n e re at s he ea -f n wr ng mplem n s of we wh ele n a a ted 9 be mill r th u e e be n w ekedenhe n me s r i in up the eerie .e repin f t u an r nsie i eie r m Pleee tmaps 9r o herw s iei lfi e n e w rkm' it! the s lient ebieete of m ein ee e are: e preyiqe n 'imr e e Sl u twe 'evine .b q reme wet-k; ee 1 whel e d ee ned e have ea th werk es i l m nts o dd jre e ng 'ime ehep eeby'mevm d r i n R v- -a en re nreyi e e mee eni m i w h t e e rame le bees ie ee r la e to the Wh els in ener-etie r h Purpos of m n uam e .eefe l i t e ea Wo k im eme t e -eld l'eh re j rovi e e d a mee ei m wi heennei b n the e om e m v ei bed f am e 'et v 9 vef xl eiri r'w e ls" ui g he o erati ef aid m lem t t .m v i m an p a atu .e j n etmeeiee an ereQ eF. m e t t we d th 9 91 efi nle th eett prkm im l m n Wlllb.eentrel e by th 91, 11 .o lead Be n the dr ft m hen 'em t p vid tri pinm w i e .relee ng' th .m em f m i 'qpemeng p i ien e" p imifi t .fe w jrem ef 1, e bei y 1P9 e e e' th m eme t- Ot e bJ1e9 1 Y?m -8% w ll ev -eam n the fol w .dee i tiee fii eeelembq i e Of m i n en .elae on theeeebm eny n t ree ee of si wine in WW9? Fi ure'l .sijs ele et enefi a ah w rkin em nt emhe xin m i ene ee h win e digging impl m nt Pl eeFigure 2 is a similar view SZIQWiIlg we levers l nks in .e ei ex em pesiie nu M strain;

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Referring now --in detail to the drawings, my invention is here embodiedfor explanatory purposes eom-prisestwb side frame Ir'1embei's 10, -10,br ought --toge1 her et -their forward ends, Ials at 1:1, and-haidng-eeross beam r membr 1-2,"froi n pne' side to the other. Two-' wheels) 13,13, have he be -W en e ehed a le 4 havin t be n ings, as 14, 14, 0' the{Iie pe'r"12,'e$

. e .9. link 01" coupling means, designated as a. wnple; ai ereieel e e.is iermesi ,i

are! 20; with brace 21 which I will now describe. Connected to the upperend of the vertical link 15, is a member 34, the rear end of which isprovided with a longitudinally extending slot 35, the opposite ends ofwhich slot are turned downwardly, as at This slot has a through pin 36,in the upper end of the vertical standard 20, therethrough. In Figs. 3and 4, this member 34 is reversed, it will be noted so that the ends ofthe slot 35 are turned upwardly, instead of downwardly, as in Figs. 1and 2. The reason for this will be described later in thisspecification. Pivotedto the upper end of said vertical standard 20, isan angle lever 3'7, pivoted at its angle at 38, and provided in its endor toe with a pin 39, positioned to engage under the end of the member34. The upper end of said angle lever 3'7 has attached thereto a pullcable 40, whereby it can be rocked on its pivot mounting to raise itstoe and the pin 39 therein to engage and raise the end of the member 34to move the slot end 35' over the stop pin 36, and thus prevent endwisemovement of said member 34, and also to prevent the rearward movement ofthe vertical member 15. The weight of the end of the member 34 normallyholds the angle lever 37 in its upright position as seen in Figs. 1 and2. In Figs. 3 and 4, said angle lever 3'7 is pulled to raise the end ofthe member 34 and thus to release it so it can be moved rearwardly withthe slot 35 moving on the pin 36. I

' With the mechanism thus far described, it will be seen that pull onthe vertical member 15, may be direct on the frame member 11 without anyrearward thrust of the member 23, as in the positions shown in Figs. 1and 3, or with the thrust movement permitted, as in positions shown inFigs. 2 and 4. The rearward thrust movement of said member 23, operatesto move the vertical lever 22 rearwardly, and inasmuch as this issecured to the arch axle A, the action is to raise the frame members 10,as indicated in the light broken lines in Fig. '7.

I will now describe the two kinds of implements which can be secured tothe rear ends of the frame members 10, 10, one implement, Figs. 1 and 2,being digger prongs, and the other, Figs. 3 and 4, being a scraper, bothimplements having stops for cooperation with the stop mechanism on theend of the long member 23.

Referring first to Figures 1 and 2, in which a digging device is shown,there is a series of yoke members or arms, as 40, spaced apart andsecured at their top sides to angle members, as 41 and 42, and also 43,extended crosswise from one side to the other of said mechanism, andwith plates, as 44 securedthereto, and by means of which said diggingdevice is pivotally mounted in the ends of the two side members 10, 10,for revolving movement. Each of said arms is provided with a diggingpoint or shoe 45, telescoped thereon and secured by means of throughbolts 46. The digging points or shoes 45 have beads of extremely hardmetal welded longitudinally along the outer surfaces of the diggingtooth to offer greater wearing resistance. The plates 44 are formed withrearwardly projecting points, as at 44', to catch in the ground whensaid device is turned over and to cause it toturn instead of sliding.The pivotal connections at the opposite ends of said digging mechanism,designated 4'7, permits said digging device torotate between the ends ofthe frame members 10, 10, as will be understood from the showing. Thecross members 41, 42 and 43, across the top of said device form stops tobe engaged by the dogs or pawls 2'7 and 29, and the operation of whichwill be described later in this specification.

Referring to Figures 3 and 4, in which a scraper mechanism is shown, thescraper bowl is designated 48, pivotally connected at its opposite ends,as at 49, between the ends of said frame members 10, 10, in thesame-manner as said digging device is mounted. These devices .orimplements can be interchanged one for the other between the ends ofsaid frame members 10, 10, as may be desired. Said scraper bowl has atits opposite ends, arch members, as 50, with slide shoes 51 around theirforward sides, as shown. In the middle of said bowl is an arched member52, provided with two stops 53 and 54 to be engaged by the dogs or pawls2'7 and 29 at different times in the operation of said mechanism, assaid bowl is turned on its pivotal mountings 49, under the rearwardlyextending long member 23. In Figures 3 and 4, which are side elevations,the end arched members only are seen, but in Figure 5, the middle archedmember 52 can be seen, and inasmuch as it is in the middle of the bowl,it has no slide shoe. The operation of this device will be describedlater herein. It will thus be seen that I have provided an earth workingmechanism in which there is a body frame or structure, 10, 10, withcarrier wheels 13, 13, and with a coupling mechanism which includes apivoted member 15, with coupler 18 therefor, and a longitudinal thrustmember 23; that there is an earth working implement, 44 in one case, and48 in another case, interchangeable in said body frame; that there is asupporting connection and holding mechanism on said longitudinal thrustmember 23 for controlling the operative and inoperative positions of theearth working implement. I have also provided a spring S, connected withthe underside of the frame member 10, and at its other end connected toan arm 14 on the arch axle A, whereby said body frameand said wheels areheldnormally and yieldingly in one position and their relative movementsare against the tension of said spring S. The rela tive movement betweenthe longitudinal thrust member 23 and the body frame 10, can beprevented by adjustment of the link or member 34, to interlock it with apin 36 on the fixed vertical standard 20, where it is desired to preventsuch relative movement.

The use and operation of the apparatus may be briefly described asfollows:

Referring first to Figures 1 and 2, with the parts in the positionsshown in full lines, if power is attached to the coupling means at 18,the digging ltd points 45 will be thrust into and through the earth assaid apparatus is pulled over the surface thereof. With the link ormember 34 in the position shown, it is free to move back and. forthlongitudinally. With the parts in these positions, as said implementmoves through the earth there to cause the points of the digger, or theedge of the scraper, to be directed upwardly. The spring S, acting onthe arch axle A is yieldingly pulling on the arm 14, as the arch axle,with the frame, moves up slightly and back. Thus when working in earthhaving a varying degree of compactness or containing rocks and stones invarying density an uneven load or pull when operating at a given depthis exerted upon the draft mechanism causing the implement to moveforward with a rocking movement, which decreases and increases the depthof operation as is necessary to maintain an even load or pull on thedraft mechanism. In other words, when an obstruction is engaged by theimplement so that the strain on the draft mechanism is increased, thenthe draft member 15 is forced back to the position shown in Fig. 2, andthe implement is rocked as also shown in Figure 2, this extra pull alsoraises the body frame, as will be understood from the diagrammatic view,Fig. '7, causing the digger points to operate at a higher level whichoffers less resistance, thereby decreasing the strain on the draftmechanism. The length of the longitudinal thrust member 23 can beadjusted by the screw 24, thus making it possible to regulate therearward pressure exerted on the top of the implement to resist theforward rocking thereof caused by the engaging of the points in theearth. In case it is desired to prevent any rearward movement of thethrust member 23, it is only necessary to pull on from said views.

from its operating position the cable 33 is pulled to withdraw dog 2'7from engagement with stop 41, thus permitting the forward motion of theapparatus to revolve the implement, thereby withdrawing the diggerpoints, in case of the digger implement, from their operative position,and in case of the scraper implement, revolving the bowl for dischargingthe accumulated material. To hold the digger implement in theinoperative position for transporting purposes the stop member 43 ispermitted to engage dog 27, as illustrated by the dotted lines inFigure 1. The stop 54 on the scraper implement engages with dog 2'? forholding the bowl and blade in the position used for leveling and fillingin. In Figures 3 and 4, where the scraper is shown as the implement, themember 34 is reversed, and it is normally interlocked to hold thescraper in the earth, but should it strike an obstruction, by pullingthe cable 40, the

\ member 34 can be released, and the movement indicated in Figure 4 willresult and the scraper will be raised out of the earth.

I am aware that many changes can be made in my invention as hereillustrated without depart- 1 ing from the spirit thereof, and. I donot, therefore,

limit the invention to the showing made, except as I may be limited bythe hereto appended claims. Having thus described my invention I claim:

1. In combination, a body frame, carrier wheels, means pivotallysupporting said body frame on said wheels to be moved relative the-reto,spring means yieldingly connecting said frame with said carrier wheels,an earth working implement pivotally supported in said frame, a draftmechanism at the opposite end of said frame and including a pivotedcoupling member for power and a longitudinal thrust member, operatingconnections between said thrust member and said frame supporting means,operating connections between said thrust member and said implement,whereby the longitudinal movement of said thrust member moves said framerelative to said wheels and said implement relative to said frame, andmeans whereby pull on said draft mechanism and said frame exertsrearward thrust on said thrust member.

2. In combination, a bodyv frame, carrier wheels, means adiustablysupporting said body frame on said wheels to be moved relative thereto,an implement pivotally supported in said frame, a draft mechanism at theopposite end of said frame and including a coupling means for power anda longitudinal thrust member, operating connections between said thrustmember and said frame supporting means, operating connections betweensaid thrust member and said implement, whereby the longitudinal movementof said thrust member moves said frame relative to said wheels and saidimplement relative to said frame, and means whereby pull on said draftmechanism and said frame exerts rearward thrust on said thrust member.

3. In an earth working implement, a body frame, carrier wheels, meanssupporting said body frame on said wheels to be raised relative thereto,draft mechanism at the forward end of said frame and movable relativethereto, an earth working implement at the rear end of said frame,operating connections between said draft mechanism, said earth workingimplement, and said body frame supporting means, whereby pull on saiddraft mechanism operates to raise said body frame relative to saidwheels and to rock said implement simultaneously, and means forrendering said operating connections inoperative.

4. In combination, a body frame, carrier wheels, means adjustablysupporting said body frame on said wheels to be moved relative thereto,an implement pivotally supported in said frame, a draft mechanism at theopposite end of said frame and including a coupling means for power anda longitudinal thrust member, operating connections between said thrustmember and said frame supporting means, operating connections betweensaid thrust member and said implement, whereby the longitudinal movementof said thrust member moves said frame relative to said wheels and saidimplement relative to said frame, means whereby pull on said draftmechanism and said frame exerts rearward thrust on said thrust memberand said implement, and means for rendering said thrust memberinoperative relative to said frame and said implement.

5. In an earth working implement, a carrier frame with wheels, animplement pivotally carried by said frame and operable in the earth assaid carrier frame is moved over the surface of the earth, meanssupporting the carrier frame on said wheels for vertical movement of theframe relative to said wheels, said means being an arched axle connectedat the top of the arch to said frame, draft mechanism for pulling saidstructure, said draft mechanism being movable relative to saidstructure, connections from said draft mechanism including an extensionlever from said arched axle for moving said frame relative to saidwheels, and a thrust member for rocking said implement simultaneouslywith the movement of said frame, and means connected with said draftmechanism and manually operable to render said relative movement of saiddraft mechanism inoperative.

6. In an implement of the character referred to, a body frame, carrierwheels therefor, said frame being movable vertically relative to saidwheels, draft means for pulling said frame, said draft means beingmovable relative to said frame, an implement carried by saidframe andmovable relative thereto, a thrust member from said draft means to saidimplement and to the frame connections with said wheels, whereby pull onsaid draft means simultaneously moves said implement relative to saidframe and moves said frame relative to said wheels, and means operablemanually for rendering the draft means rigid relative to said frame atwill.

7. In an implement of the character disclosed, a body frame, carrierwheels therefor, said frame being movable vertically relative to saidwheels, draft means for pulling said frame, said draft means beingmovable relative to said frame, an implement pivotally supported on saidframe, a thrust member from said draft means to said 1 implement and tothe frame connections with said wheels, whereby pull on said draft meanssimultaneously moves said implement relative to said frame and movessaid frame relative to said wheels, thereby varying the depth ofoperation of said implement, and means operatable manually for renderingthe draft means rigid relative to said frame at will.

8. In an implement of the character disclosed, a body frame, carrierwheels therefor, said frame '1 being movable vertically relative to saidwheels,

draft means for pulling said frame, said draft means being movablerelative to said frame, an implement pivotally carried by said frame, athrust member from said draft means to said implement and to the frameconnections with said wheels, whereby pull on said draft meanssimultaneously moves said implement relative to said frame and movessaid frame relative to said wheels, thereby controlling the depth ofoperation of said implement in proportion to the load on said draftmeans, means operatable manually for rendering the draft means rigidrelative to said frame at will, and tripping means on said thrust memberfor said implement.

9. In a device as described in claim 8, in which the tripping means uponreleasing permits the traction of the ground surface to revolve theimplement, means associated with said tripping means for holding saidimplement in the inoperative position.

10. In combination, a body frame, carrier wheels, means adjustablysupporting said body frame on said wheels to be moved relative thereto,an implement revolvably carried at one end of said frame, a draftmechanism at the opposite end of said frame and including a couplingmeans for power and a longitudinal thrust member, operating connectionsbetween said thrust memher and said frame supporting means, operatingconnections between said thrust member and said implement, whereby thelongitudinal movement of said thrust member moves said frame relative tosaid wheels and rocks said implement relative to said frame, meanswhereby pull on said draft mechanism and said frame exerts rearwardthrust on said thrust member, and a tripping device on said thrustmember for said implement, whereby upon releasing said tripping devicethe implement is permitted to roll on the ground surface.

11. In combination, a body frame, carrier wheels, means adjustablysupporting said body frame on said wheels to be moved relative thereto,a ripper implement revolvably carried at one end of said frame, a draftmechanism at the opposite end of said frame and including a couplingmeans for power and a longitudinal thrust member, operating connectionsbetween said thrust member and said frame supporting means, operatingconnections between said thrust member and said ripper implement,whereby the longitudinal movement of said thrust member moves said framerelative to said wheels and rocks said ripper implement relative to saidframe, means whereby pull on said draft mechanism and said frame exertsrearward thrust on said thrust member, and a tripping device on saidthrust member for said ripper implement, whereby upon releasing saidtripping device the ripper implement is permitted to roll on the groundsurface.

12. In a device as described in claim 11, in which the tripping meansupon releasing permits the traction of the ground surface to revolve theripper implement, thereby releasing it from the operating position,means for holding said implement in the inoperative position.

13. In combination, a body frame, carrier wheels, means adjustablysupporting said body frame on said wheels to be moved relative thereto,a scraper implement revolvably carried at one end of said frame, a draftmechanism at I the opposite end of said frame and including a couplingmeans for power and a longitudinal thrust member, operating connectionsbetween said thrust member and said frame supporting means, operatingconnections between thrust member and said scraper implement, wherebythe longitudinal movement of said thrust member moves said framerelative to said wheels and rocks said scraper implement relative tosaid frame, means whereby pull on said draft mechanism and said frameexerts rearward thrust on said thrust member, and a tripping device onsaid thrust member for said scraper implement, whereby upon releasingsaid tripping device the scraper implement is permitted to roll on theground surface.

14. In a device as described in claim 13 in which the tripping meansupon releasing permits the traction of the ground surface to revolve thescraper implement, thereby discharging accumue lated material, and meansfor holding said scraper implement in the leveling position.

MAX M. BRODERSEN.

